Mine-car.



PATENTBD MAY 7, 1907'.

P. o. HOCKENSMITH.

MINE GAR. APPLICATION* FILED FEB. 14, 1907.

mlmm-@ 5 lfm.

UNTER STATES QFFiCE.

FRANKLIN o. nOoKENsMITH, OE PITTsBURo, PENNSYLVANIA AssIeNoR To IIooKENsMITPI WHEEL aMINE OAR COMPANY, OE PENNs STATION, PENNSYLVANIA-A CORPORATION -OE PENNSYLVANLA.

To wl?, whom t may concern:

Be it known that I, FRANKLIN C. HOOKEN- SMITH, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new 4and useful improvements in Mine-Cars, of which the following is a specification. f 4

The ob'ectof this invention is to provide means for strengthening and making more permanent the connection between the `body of'acar-particularly a mine car-and the axle-confining members or mountings. It is the universal practice to secure these mountings to the underside of the car by bolts exn tending through thel car bottom. mountings consist of rough castings, and as the openings 'therein for 'the securing .bolts are simply cored and not machined, the connection with the bottom, While at first comparatively tight owing to the pressure or friction hold-'of-one part upon the other, soon loosens or gives' more or less underthe rough usage and excessive `strain to which mine cars are sublecte'd, and when once-loosened the arts wear very rapidly.- Furthermore,

this oosening of the axle-confining members ldisturbs the alinement vofthe axles and the wheels do not run true, thus 'stillfurther subjecting the carto destructive wear; By reinforcing said members as herein proposed,

they are rigidly and-permanently held,'thereV being no appreciable loosening, land much wear heretofore considered unavoidable is prevented.

In the accompanying drawings, Figure 1 is a bottom plan view of a portion ci a mine car with the improvements applied. thereto, and Fig. 2 is a side view of the same, partly in sectionl taken on lioe2-2 of Fig. 1. Fig. Sis a detail view of one of the axle mountings.` Fig. 4 isv asimilar view of a portion of..

one of the bottom reinforcements.

' Referring to the drawings, 2- designates the bottom of the car body, and 3 are the axleconiining members or mo'unting's secured to.

the underside thereof. The axles' 4 may, either 'turn on these 'members or be. held i'ixed, and wheels axles, as desired.

Each of members 3 has its uppe'r face formed with depression 6, which extends 5 may turn`on or with the from side to side thereof in direction parallel Specification of Letters Patent.v Application filed February i4. 190'?. Serial No. 857,315.

-cost Aas to preclude the expensive machine- `with `each other and each formed with atop .depression'having `opp'osite side walls, and a Patented May '7, 1907.

with the of axle-confining cavity 7. Portions 8 o'l` the top surface fornithe opposite side walls of depression 6, and bear upwardly Aagainst the car bottom, while thimbles 9, cast integral with body 3, and projecte ing from faces 8, extend into counter-sunk portions of the bolt passages formed through bottom 2. l0 are the securing bolts extend- 6c ing through said thimbles and through body 3 and the car bottom.

Extending transversely across the under side of bottom 2 are the reinforcing plates or bars 11, the ends of which are entered in depressions 6 of the opposite axle mountings 3.

vProjecting upward from the bottom of de- .united as to practically precludel displacement through wear.

The axle mountings are formed of rough dastings and hence there is no accurate {itting of b olts 10 therein,'such as is secured by machining. I

Cars of this character are produced at such' work necessary for accurate fitting, hence -the 'advantage in so casting the mountings.

that they are securely held when in place on the ear b ody.

I claim: 9o '1. The combination of a car'body, an axleconining member at the under side of the body and formed with a top depression having opposite side walls, and a reinforcing member for the car body having its end entered in the depression betweensaid walls. l

2. Tjhe combination of a car body, axleconfining members secured at opposite sides ofthe bottom thereof, said members alining transversereinforcement for the car body 'l having its ends entered between the side walls of said depressions.

Ioo

'- said member, anda reinforcement for. tbecar 3. The `combin-sttiojn of a car body, an aigleconnng member at the, under side of the body, and a reinforcing member for the oar' body, said 'member 'and the axle-confining Amember being formed rwith vinterlocking arts. H. 4.

' confinjngmember at'the under side of the body, a reinforcement for'thecar bottom, and en interlocking connection between the`r relnforoement and the upper sidez of the tXle-` 5.5 The oombnetion of a cara-r body, an z a-,Xle-V conining member at the`` underfside thereof, a bosjs projecting romthe upper side ofthe The combination of weer body, 'nnaxleL bottom-formed with an 'in presence of two witnesses.

6. The combination of'I car body, arder'.

`confining members atfoppositelsides thereofand formed each with top. depression., a bose opening to embrace proj eatingv into each depression,a.nd ,a trans versereinorcing bar fior- 4 the car bottom having its endsv entered in` said depressions and formed tonterlock with the-bosses.

"In tetmony whereof I afXIny-signature" 

